<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .pg-header{
            height: 38px;
            background-color: #dddddd;
            line-height: 38px;
        }
    </style>
</head>
<body style="margin: 0 auto">
    <div class="pg-header">
        <div style="float: left">收藏本站</div>
        <div style="float: right">
            <a>登录</a>
            <a>注册</a>
        </div>
    </div>
   <div style="width: 300px; border: 1px solid red">
            <div style="width: 96px; height: 30px; border: 1px solid black; float: left"></div>
            <div style="width: 96px; height: 30px; border: 1px solid black; float: left"></div>
            <div style="width: 96px; height: 30px; border: 1px solid black; float: left"></div>
            <div style="width: 96px; height: 30px; border: 1px solid black; float: left"></div>
            <div style="width: 96px; height: 30px; border: 1px solid black; float: left"></div>
            <div style="width: 96px; height: 30px; border: 1px solid black; float: left"></div>
            <div style="width: 96px; height: 30px; border: 1px solid black; float: left"></div>
            <div style="width: 96px; height: 30px; border: 1px solid black; float: left"></div>
            <div style="clear: both"></div>
        </div>
</body>
</html>